Event: Summer Rapid Tournament

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Opponent	Rating	Result
Paul Mcguigan	0	0 - 1
Bryan J Bainbridge	0	0 - 1
Michael Siddle	0
Chris Clynes	0
Adrian Dilley	0	0 - 1
Deborah Edmundson	0	0 - 1
Mark Edmundson	0
Richard Manchester	0	½ - ½
Paul Mcguigan	0	1 - 0
Bryan J Bainbridge	0	1 - 0
Michael Siddle	0
Chris Clynes	0
Deborah Edmundson	0	½ - ½
Mark Edmundson	0
Adrian Dilley	0	0 - 1
Richard Manchester	0	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

-80 = (0 + 400 * (3 - 5)) / 10)